Foldable knife



FIG. 1 is a top perspective view of a foldable knife showing my new design, wherein the blade is in the open position;

FIG. 2 is a bottom perspective view of FIG. 1;

FIG. 3 is a top plan view of FIG. 1;

FIG. 4 is a bottom plan view of FIG. 1;

FIG. 5 is a front elevation view of FIG. 1;

FIG. 6 is a rear elevation view of FIG. 1;

FIG. 7 is a right side elevation view of FIG. 1; and,

FIG. 8 is a left side elevation view of FIG. 1.

The knife blade is depicted in broken line form because it is not considered part of the claimed design. 

CLAIM The ornamental design for a foldable knife, as shown and described. 